CMMVC8390E   Cannot set easy_tier_option for child storage pool, the value must be same as parent storage pool's easy tier setting.

Explanation

You cannot change the Easy Tier® setting of a child storage pool.

User response

If you specified the wrong storage pool, retry the command using the correct storage pool.

If you want to change the Easy Tier setting of a parent pool, use the chmdiskgrp -easytier easy_tier_option command.